If you visit a used bookstore, you might stumble upon an often neglected section: miniature or compact books. A miniature book generally measures 3 by 4 inches; some are even smaller: 1.5 inches by 2 inches. A compact book, also known as an octodecimo in American Library Association lingo, generally measures 4 x 6 inches. Unfortunately, these types of books are often dismissed due to their small size. “If they are so small, how can they possibly matter?” you think to yourself. Astute book lovers, however, know that even little books can contain big ideas — profound thoughts that can change your life...